MAX1873REEE+T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Multi-Chemistry
Number of Cells:	2
Current - Charging:	Constant - Programmable
Programmable Features:	--
Fault Protection:	--
Charge Current - Max:	4A
Battery Pack Voltage:	8.4V
Voltage - Supply (Max):	28V
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Supplier Device Package:	16-QSOP
Base Part Number:	MAX1873

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Introduction

The MAX1873REEE+T is a synchronous step-down converter with an integrated EEPROM that is specifically designed for applications requiring an ultra-small, highly accurate system. It efficiently transfers the power from a 4.5V to 30V input supply to a 1.5V to 28V output and features current and temperature protection. The integrated EEPROM also provides a large array of user-programmable settings to customize the control loop parameters for each application. This article will discuss the application field and working principle of the MAX1873REEE+T.

Application Field

The MAX1873REEE+T is primarily used in portable electronic devices such as laptop computers, PDAs, cell phones, digital cameras, and mobile medical equipment. It is also well suited for automotive, industrial and consumer applications such as BLDC motor controller, digital video, power tools and LCD backlight. Additionally, the MAX1873REEE+T can be used in battery management systems that require advanced power control and optimized power efficiency for battery-operated systems.

Working Principle

The MAX1873REEE+T uses a synchronous step-down converter to transfer power from a 4.5V to 30V input supply to a 1.5V to 28V output. In this topology, a main switch and an auxiliary synchronous switch are switched in unison in order to convert the input voltage to the desired output voltage. When the main switch is ON, the input supply current is amplified and stored in a filter inductor. When the main switch is OFF, the stored current is then discharged, passing through the synchronous switch, in order to provide the necessary output voltage.The device also includes current and temperature protection features that ensure that it stays within its specified operating range. Additionally, the MAX1873REEE+T also includes a user-programmable settings that provide the necessary control loop parameters for each application. This helps optimise efficiency and protection parameters, as well as enhances system performance.

Conclusion

The MAX1873REEE+T is an excellent choice for a wide variety of applications. It is capable of efficiently transferring power from a 4.5V to 30V input supply to a 1.5V to 28V output, and offers many user-programmable settings to customize the control loop parameters for each application. Moreover, the integrated EEPROM ensures that current and temperature protections are maintained, as well as optimises efficiency and protection parameters for enhanced system performance.

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